Blackberry Plants
Q.

blackberry bushes

Zone south east virginia | frances.simpson added on June 29, 2012 | Answered

2 questions: 1. I have two bushes that are prolific with flowers and then red berries. But, the berries never get large and are bitter when they turn black. 2. These large non-fruit producing stems keep popping up. I keep cutting them back. Is this the right thing to do and why do they grow?

A.
A.Answers to this queston: Add Answer
Heather
Certified GKH Gardening Expert
Answered on July 7, 2012

It sounds like your plants are getting witches broom. The disease causes those stems and also saps energy away from producing stems, which means inferior, poor tasting fruit. This article will have more information and how to control it:
http://www.ca.uky.edu/agcollege/plantpathology/ext_files/PPFShtml/PPFS-FR-S-3.pdf

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